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ICP-MS analysis of long-lived radionuclides: A review of gas usage and applications of quantum chemical calculations in the collision/reaction cell
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DOI：10.1016/j.net.2026.104484.png)
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Abstract
En 中文
The accurate measurement of long-lived radionuclides (i.e., Technetium-99 (99Tc), Iodine-129 (129I), Strontium-90 (90Sr), Caesium-135 and -137 (135Cs and 137Cs), Zirconium-93 (93Zr), Molybdenum-93 (93Mo), Uranium-236 (236U), Thorium-230 and -232 (230Th and 232Th), Plutonium-238, -239, −240, and −241 (238Pu, 239Pu, 240Pu, and 241Pu), Neptunium-237 (237Np), Americium-241 (241Am), and Curium-244 (244Cm)) and their related ratios is critically important for nuclear energy, environmental science, and safety. Single quadrupole inductively coupled plasma mass spectrometry (ICP-QMS) equipped with a collision/reaction cell (CRC), and tandem mass ICP spectrometers (ICP-MS/MS) offer outstanding interference removal capability and have become key tools for analyzing these trace nuclides. This review summarizes the various gases used with this technology for the analysis of the above-mentioned long-lived radionuclides in recent years, and additionally presents the specific application of quantum chemical computation (QCC) in predicting gas-phase ion-molecule reactivity and revealing reaction mechanisms, aiming to guide experimental researchers in selecting reaction gases more efficiently while deepening their understanding of the reaction processes inside the CRC.
Keywords:
ICP-MS
Collision/reaction cell
Quantum chemical calculation
Gas-phase ion–molecule reactions
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